A squall line developed ahead of a cold front in a moist atmosphere and raced east across Iowa and northwest Illinois.  A brief weak tornado occurred in a corn field west of Waubeek, Iowa.  The tornado track  was discovered the next morning by a news helicopter.

Thunderstorm Wind in LINN, IOWA
From 29-JUN-05 22:50:00 to 29-JUN-05 22:51:00 (CST)
Location: WAUBEEK
Magnitude: 65 EG
Property damage: 7K
Crop damage: 12K
Reported by: BROADCAST MEDIA

A downburst produced a 50-60 yard wide path through cornfields west of Waubeek.  Several trees were downed on the Brecht farm along with a few windows broken.  The damage showed indications of laying in one direction.  However, it is possible a weak tornado may have also occurred due to a hay rack being tossed several tens of yards and over a few fences.

Hail in LINN, IOWA
From 29-JUN-05 22:53:00 to 29-JUN-05 22:54:00 (CST)
Location: HIAWATHA
Magnitude: 0.88 
Reported by: EMERGENCY MANAGER

Dime to nickel sized hail

Thunderstorm Wind in DELAWARE, IOWA
From 29-JUN-05 22:56:00 to 29-JUN-05 23:05:00 (CST)
Location: MANCHESTER
Magnitude: 52 EG
Property damage: 10K
Reported by: LAW ENFORCEMENT

Trees and power lines down.

Thunderstorm Wind in DELAWARE, IOWA
From 29-JUN-05 22:57:00 to 29-JUN-05 23:05:00 (CST)
Location: RYAN
Magnitude: 61 EG
Property damage: 12K
Reported by: LAW ENFORCEMENT

Barn down

Thunderstorm Wind in DELAWARE, IOWA
From 29-JUN-05 23:07:00 to 29-JUN-05 23:14:00 (CST)
Location: BUCK CREEK
Magnitude: 61 EG
Property damage: 7K
Reported by: NEWSPAPER

6-7 trees down on a house and garage.

Thunderstorm Wind in DELAWARE, IOWA
From 29-JUN-05 23:16:00 to 29-JUN-05 23:21:00 (CST)
Location: PETERSBURG
Magnitude: 61 EG
Property damage: 25K
Reported by: NEWSPAPER

A machine shed and two barns were destroyed at the Theisen (pronoused tyson) farm northwest of New Vienna on 160th Street.  Additionally a large tree was downed that just missed the house.

Thunderstorm Wind in DUBUQUE, IOWA
From 29-JUN-05 23:21:00 to 29-JUN-05 23:29:00 (CST)
Location: FARLEY
Magnitude: 52 EG
Property damage: 8K
Reported by: LAW ENFORCEMENT

Tree down on a car

Thunderstorm Wind in LINN, IOWA
From 29-JUN-05 22:55:00 to 29-JUN-05 22:56:00 (CST)
Location: PRAIRIEBURG
Magnitude: 50 EG
Property damage: 12K
Crop damage: 4K
Reported by: EMERGENCY MANAGER

An empty semi trailer was blown over but a nearby tanker trailer was not moved.  Some damage was noted to a nearby grain bin with the corn leaning a little off vertical.  A nearby house was undamaged.

Thunderstorm Wind in DUBUQUE, IOWA
From 29-JUN-05 23:35:00 to 29-JUN-05 23:41:00 (CST)
Location: DUBUQUE
Magnitude: 51 MG
Reported by: AWOS,ASOS,MESONET,ETC

Measured by IDOT RWIS on U.S. 20 on the west side of Dubuque.

Thunderstorm Wind in SCOTT, IOWA
From 30-JUN-05 01:53:00 to 30-JUN-05 02:02:00 (CST)
Location: DIXON
Magnitude: 52 EG
Crop damage: 12K
Reported by: NEWSPAPER

Corn flattened.

Thunderstorm Wind in SCOTT, IOWA
From 30-JUN-05 02:00:00 to 30-JUN-05 02:07:00 (CST)
Location: PRINCETON
Magnitude: 57 EG
Property damage: 5K
Crop damage: 10K
Reported by: NWS STORM SURVEY

Large limbs down with damage to power lines.

Thunderstorm Wind in SCOTT, IOWA
From 30-JUN-05 02:00:00 to 30-JUN-05 02:05:00 (CST)
Location: LE CLAIRE
Magnitude: 52 EG
Crop damage: 6K
Reported by: NWS STORM SURVEY

Corn flattened.

Thunderstorm Wind in CLINTON, IOWA
From 30-JUN-05 02:10:00 to 30-JUN-05 02:15:00 (CST)
Location: CAMANCHE
Magnitude: 65 EG
Property damage: 20K
Reported by: NWS STORM SURVEY

Significant tree limb damage with limbs and power lines down.  Windows broken out at a business in town.

Thunderstorm Wind in BENTON, IOWA
From 29-JUN-05 22:28:00 to 29-JUN-05 22:33:00 (CST)
Location: VINTON
Magnitude: 56 MG
Property damage: 5K
Reported by: BROADCAST MEDIA

KWWL spotter